P09xx OBD-II Codes (P0900–P0999)
100 fault codes in the P09xx range. Click any code for causes, diagnostic steps, severity, and common fixes.
P0900 critical
Clutch Actuator Circuit Open
P0901 moderate
Clutch Actuator Circuit Range/Performance
P0902 moderate
Clutch Actuator Circuit Low
P0903 moderate
Clutch Actuator Circuit High
P0904 moderate
Gate Select Position Circuit
P0905 moderate
Gate Select Position Circuit Range/Performance
P0906 moderate
Gate Select Position Circuit Low
P0907 moderate
Gate Select Position Circuit High
P0908 moderate
Gate Select Position Circuit Intermittent
P0909 moderate
Gate Select Control Error
P0910 critical
Gate Select Actuator Circuit Open
P0911 moderate
Gate Select Actuator Circuit Range/Performance
P0912 moderate
Gate Select Actuator Circuit Low
P0913 moderate
Gate Select Actuator Circuit High
P0914 moderate
Gear Shift Position Circuit Open
P0915 serious
Gear Shift Position Circuit Range/Performance
P0916 serious
Gear Shift Position Circuit Low
P0917 serious
Gear Shift Position Circuit High
P0918 moderate
Gear Shift Position Control Performance
P0919 moderate
Gear Shift Position Control Error
P0920 critical
Gear Shift Forward Actuator Circuit Open
P0921 serious
Gear Shift Forward Actuator Circuit Range/Performance
P0922 moderate
Gear Shift Forward Actuator Circuit Low
P0923 moderate
Gear Shift Forward Actuator Circuit High
P0924 moderate
Gear Shift Reverse Actuator Circuit Open
P0925 serious
Gear Shift Reverse Actuator Circuit Range/Performance
P0926 serious
Gear Shift Reverse Actuator Circuit Low
P0927 serious
Gear Shift Reverse Actuator Circuit High
P0928 serious
Gear Shift Lock Solenoid/Actuator Control Circuit "A"/Open
P0929 serious
Gear Shift Lock Solenoid/Actuator Control Circuit "A" Range/Performance
P0930 serious
Gear Shift Lock Solenoid/Actuator Control Circuit "A" Low
P0931 serious
Gear Shift Lock Solenoid/Actuator Control Circuit "A" High
P0932 moderate
Hydraulic Pressure Sensor Circuit
P0933 moderate
Hydraulic Pressure Sensor Circuit Range/Performance
P0934 moderate
Hydraulic Pressure Sensor Circuit Low
P0935 moderate
Hydraulic Pressure Sensor Circuit High
P0936 moderate
Hydraulic Pressure Sensor Circuit Intermittent
P0937 moderate
Hydraulic Oil Temperature Sensor Circuit
P0938 moderate
Hydraulic Oil Temperature Sensor Circuit Range/Performance
P0939 moderate
Hydraulic Oil Temperature Sensor Circuit Low
P0940 moderate
Hydraulic Oil Temperature Sensor Circuit High
P0941 moderate
Hydraulic Oil Temperature Sensor Circuit Intermittent
P0942 moderate
Hydraulic Pressure Unit
P0943 moderate
Hydraulic Pressure Unit Cycling Period Too Short
P0944 moderate
Hydraulic Pressure Unit Loss of Pressure
P0945 moderate
Hydraulic Oil Pump Relay Circuit Open
P0946 moderate
Hydraulic Pump Relay Circuit Range/Performance
P0947 moderate
Hydraulic Pump Relay Circuit Low
P0948 moderate
Hydraulic Pump Relay Circuit High
P0949 critical
Adaptive Learning Not Done Auto Shift Manual
P0950 moderate
Autoshifting Manual Transmission (ASM) Control Circuit
P0951 serious
Auto Shift Manual Control Circuit Range/Performance
P0952 serious
Auto Shift Manual Control Circuit Low
P0953 serious
Auto Shift Manual Control Circuit High
P0954 serious
Auto Shift Manual Control Circuit Intermittent
P0955 serious
Auto Shift Manual Mode Circuit
P0956 serious
Auto Shift Manual Mode Circuit Range/Performance
P0957 serious
Auto Shift Manual Mode Circuit Low
P0958 serious
Auto Shift Manual Mode Circuit High
P0959 serious
Auto Shift Manual Mode Circuit Intermittent
P0960 moderate
Pressure Control Solenoid A Control Circuit Open
P0961 moderate
Pressure Control Solenoid A Control Circuit Range/Performance
P0962 moderate
Pressure Control Solenoid A Control Circuit Low
P0963 moderate
Pressure Control Solenoid A Control Circuit High
P0964 serious
Pressure Control Solenoid "B" Control Circuit/Open
P0965 serious
Pressure Control Solenoid "B" Control Circuit Range/Performance
P0966 serious
Pressure Control Solenoid "B" Control Circuit Low
P0967 serious
Pressure Control Solenoid "B" Control Circuit High
P0968 serious
Pressure Control Solenoid "C" Control Circuit/Open
P0969 serious
Pressure Control Solenoid "C" Control Circuit Range/Performance
P0970 serious
Pressure Control Solenoid "C" Control Circuit Low
P0971 serious
Pressure Control Solenoid "C" Control Circuit High
P0972 moderate
Shift Solenoid A Control Circuit Range/Performance
P0973 moderate
Shift Solenoid A Control Circuit Low
P0974 moderate
Shift Solenoid A Control Circuit High
P0975 moderate
Shift Solenoid B Control Circuit Range/Performance
P0976 serious
Shift Solenoid "B" Control Circuit Low
P0977 serious
Shift Solenoid "B" Control Circuit High
P0978 serious
Shift Solenoid "C" Control Circuit Range/Performance
P0979 serious
Shift Solenoid "C" Control Circuit Low
P0980 serious
Shift Solenoid "C" Control Circuit High
P0981 serious
Shift Solenoid "D" Control Circuit Range/Performance
P0982 serious
Shift Solenoid "D" Control Circuit Low
P0983 serious
Shift Solenoid "D" Control Circuit High
P0984 serious
Shift Solenoid "E" Control Circuit Range/Performance
P0985 serious
Shift Solenoid "E" Control Circuit Low
P0986 serious
Shift Solenoid "E" Control Circuit High
P0987 moderate
Transmission Fluid Pressure Sensor/Switch "E" Circuit
P0988 moderate
Transmission Fluid Pressure Sensor/Switch "E" Circuit Range/Performance
P0989 moderate
Transmission Fluid Pressure Sensor/Switch "E" Circuit Low
P0990 moderate
Transmission Fluid Pressure Sensor/Switch "E" Circuit High
P0991 moderate
Transmission Fluid Pressure Sensor/Switch "E" Circuit Intermittent
P0992 moderate
Transmission Fluid Pressure Sensor/Switch "F" Circuit
P0993 moderate
Transmission Fluid Pressure Sensor/Switch "F" Circuit Range/Performance
P0994 moderate
Transmission Fluid Pressure Sensor/Switch "F" Circuit Low
P0995 moderate
Transmission Fluid Pressure Sensor/Switch "F" Circuit High
P0996 moderate
Transmission Fluid Pressure Sensor/Switch "F" Circuit Intermittent
P0997 serious
Shift Solenoid "F" Control Circuit Range/Performance
P0998 serious
Shift Solenoid "F" Control Circuit Low
P0999 serious
Shift Solenoid "F" Control Circuit High